Liquid-meter.



J. w. LEDOUXQ LIQUID METER. APPLICATION FILED LIA/B04, 1907.

75 a Patented Apr. 26, 1910.

WITNESSES: l/YKE/VTGW A Tram/5k JL w. 1315062;

LIQUID METER. APPLICATION FILED 3.4, 1907.

Patented Apr. 26, 1910.

WITNESSES.

MM /i- M nrromw-"x an? s L OHN W. llEDOUX, OF SWARTHMOHE, PENNSYLVANIA,ASSIG-NOR TO SIMPLEX VALVE 6a METER COMPANY, DIE CAMDEN, NEWfiERSEY ACORPORATION OF NEW JERSEY.

LIQUID-METER.

Specificationof Letters Iatent.

Patented Apr.26, 1910.

Application filed March 4', 1907. Serial No. 360,358.

To all whom it may concern:

Be itknown that 1, JOHN \V. Lnnoux, a citizen of the United States,residing at Ehvarthinore, in the county of Delaware and Eltate ofPennsylvania, have invented certam Improvements in Liquid-Meters, ofwhich the following is a'specification.

.This invention isa meter; having means whereby varying degrees ofpressure corresponding to the varying rate of the flow to be determinedmaintains a proportionate ilow of a small quantity of'liquid which ismeasured, the proportionate flow being maintained by automaticallyvarying the head of liquid flowing through a small orificeWlilLVZllfllhlOllS in-the head that induces the main flow.

The characteristic features of the inven tion are more fullydisclose'd'by. the following description and the accompanying draw ingsin illustration thereof, of which Figure 1 is an elevational viewrepresent ing my invention with parts shown in section; Fig. 2 is aplanview of a detail taken entire line 2-2 of Fig. 1;:Fig. 3 is anelevational view representing a second form of my invention with partsshown in section;

Fig. 4 is an elevational view'represcnting a second position of themechanism shown in Fig. 3 with parts shown in sectiomandFig. 5-represcnts the application of the invention to liquid flowing in an openchannel.

- In the practice of my invention, the conduitl which carries the fluidto be metered, is provided with the sections 2 and 3 converging to thethroat 4. A tube 5 connects a. normal section. of the conduit 1 with theenlar ed top orchamber (S of a tubular reservoir 3 and a tube 8 connectsthe throat l with the enlargedt-op or chamber 9 of the I tubularreservoir 10, the bottoms of the reservoirs being connected by the benttube 1L and the tops of the chambers 6 arid 9 being closed. A liquid, asmercury, heavier than that to be measured, as water, is con-. tained inthe parts 7, 10 and 11, forming barometric columns, subject to-thepressure of the liquid in the conduit 1 acting through the tubes 5' and8 upon the surfaces of the columns of heavier liquid,'the tops of thechambers 6 and'9 being closed. The level ofthe heavier liquid, when-thepressure upon the two columns is thesame, is suitably,

near the bottom of the chamber (5, and the chambers 6 and 9 are madesuflioiently' large that the heavier liquid will not under abnormalconditions overflow into the tubes As shown in Fig.1, a float 12 iscontainedin the reservoir 7 and connected by a fine cord or wire 13 witha tubular vessel 14, the cord passing through the closed top of thechamber 6 and over a sheave l5 revoluble on an axis 16 to providebalancing means. The vessel ll is adapted for reciprocation in thestationary tubular vessel 17, the former having a small orifice 18 inits bottom whereby liquid, with which it is maintained con-,. stantlyfull, flows into the latter, which is maintained constantly fullthereby. The float l2 reciprocates with the rise and fall of the liquidin the reservoir 7. To main tain a balance between this float and theloaded vessel 14, subject to varying buoyancies at its varying positionsin the filled vessel 17, a cam is fixed to the sheave 15 fixed thereto,the cam providing an arm for the weight variable with the buoyancy ofthe vessel 14. The vessel la is kept full by a pipe 21 connected with abasin 22 into which liquid flows from the conduit 1 by the pipe 23. i

An automatic regulation of the flow of liquid to the basin 22 iseffected so that end the-discharge port 24 of the pipe 23 is controlledby a valve 25 carried by a lever 26 which is fulcrumed on the bearing 271 and supports a channeled rod 28 having suspended from the lower endthereof a bucket 29 with a small orificew 30 in its bottom. The vessel14; overflows its very thin top. flange 31 into the channel 32 whichdischarges by the small spout into the channel ill of the rod 28, thelatter discharging into the bucket 29 which wastes through the orifice30. Then the liquid overflows the vessel 1% more rapidly than it can bedischarged through the orifice 30, the consequent accu 100 mulation inthe bucket .29 causes thelatter to fall and elevates the valve 25, theflow from v than the discharge fromthe bucket29, the 105 latterbecomes:lighter,-rises, and opens the valve 25.

difference between the levels oh the liquids p I there may be nounnecessary waste. :To this As the elevation of the vessel 14, vorrt-heI v tute parts ofa lever having thc'flexible jointsure inducing flowthrough the orifice 13 and as this pressure is proportionate to thedifference'in pressure between the normal and reduced sections of the.conduit 1 which'determines the movement of thejfloat 12, the quaptity ofliquid discharged from the orifice and received by the vessel 17is"propor-' tionate to the flow through the conduit 1.

The liquid received by the vessel 17 over- I than the passages 38' and39. The passage 39, the vessel 40 and the passage 41 consti- 43 aboutwhich it oscillates-so that the vessel 40 will be held elevated by thecounter weight 44 until the liquid has risen to-a certain height in thetank 37 and will drop when filled by the discharge from the tank,

thecontracted outlet 41 keepingthe vessel fullimd down until the tankhas discharged.

Afloat 45 'is reciprocated by the rise and fall of liquid in the tank 37and communicates its movement to a disk 46 adapted to 'oscillate on anaxis 47, a cord. 48 passing over the disk being connected to the stem 49p of the float and a counter weight 50 for the float. The oscillatingdisk 46 has fixed thereto a clip 51 which carries a usual form of ballclutch 5.2,the ball running freely in one direction on the face ofthe'spur wheel 53 and gripping the wheel so as to turn it' upon itsaxis. 47 in the opposite direction. A stationary clip 54 carries a ball55 which runs freely on the face of the spur wheel whenthe latter isadvanced but grips it to prevent reverse movement. The spur wheel 53,thus revolved step by'step at the rate of reciprocation of the float 45,operates the .driving pinion 56 of a register 57 which indicates thetotal flow through the conduit.

The bucket 29 discharges through its or1- fice 30 into the funnel 58 andthe waste pipe 59, and the bucket 40 discharges through its outlet41'into thecatch basin 60 and the waste pipe 61. a

As shown in Figs. 3 aiid 4, the cam 15' and theweight 20 may bedispensed with bysubstituting for the float 12 a float .12 shaped asrequired to balance the vessel 14 at itsivarious positions and depths ofsubmergence in the vessel 17 V It will be understood that, in operation,when the flow in the conduit 1 has reached the maximum, theresultantefiect of the pressures communicated through the tubes 5 and 8as been to drive the heavier liquid from t e reservoir? into the tube 11andthe' reservoir 10, the float 12 or 12 falling to its lowest positionand the vessel 14 rising to its highest position. As the rate of flowdecreases, the float rises with the rise of the -mercury in the hollowcolumn 7 and the vessel'14 falls, the head which induces the flowthrough the orifice 18 varying therewith. At the time the heavier liquidand the float have risen to their highest point in the column 7 whenthere is no how in the conduit 1, the bottom of the vessel 14 hasreached the bottom of the vessell? when there is no flow throughits'orifice since the head is practically zero. The orifice 18 isositively closed in the lowest position of t e vessel 14 by the stopper60 on the bottom of the vessel 17. i

It will be understood that, as shown in Fig. 5, my-invention is adaptedforindieating the flow of a liquid in an open channel 62, through a weiror over a dam. In such case a float 12", connected with the cord 13,

varies the position of the vessel 14 with variations in the level of theliquid, froifi which the flow may be indicated.

Having described my invention, I claim v 1.A liquid meter comprisinga'vessel, a I

second vesseladapted to reciprocate therein, said second vessel havingan outlet by which it discharges into saidifirst vessel,'means formaintaining a constant depth of liquid insaid second vessel, and meansfor measuring the overflow from said first vessel. 2. A liquid metercomprising a stationary vessel having an overflow passage, avesselmovable in saidstationary vessel and having an orifice dischargingthereinto, means for maintaining a constant depth of'liquid in saidmovable vessel, and means for varying the position of said movablevessel with vameasured.

3. A liquid meter comprising a stationary .riations in the pressure of'aliquid to be an orifice discharging thereinto, meansfor measuring theoverflow from said stationary vessel, a conduit, and means for varyingthe position of said movable vessel in said stationary vessel withvariations in the pressure of a liquid in said-conduit.

4. A liquid meter comprising members containing 'a liquid heavier thanthat to be measured, means whereby the liquid to be measuredcommunicates its pressure to and moves said heavier liquid, :1. floatbarometric movable in one of said members with said heavier liquid, avessel, balancing mechanism by which said ,iioat and vessel areconnected so that the movement of the float moves'the vessel, a secondvessel in which said first vessel moves and into which it discharges,and means formaintaining said first vessel full.

5. A liquid meter comprising a pair of hollow columns having a passageconnecting their bottoms, a float in one of; said columns, a vesselhaving an orifice in the bottom seems -which said floatand vessel areconnectedf controlling the flow,

c'second vessel in which said first vesse moves and into which itdischarges through said orifice, end-means for ma ntaining a constantliquid level in said first, vessel.

6. In a'liquid meter e vessel, :2. vslve for is liquid in ee vessel, andmeans for riletmg the position of said valve, said means comp V amovable vessel and mechanism whe "in said movable vessel is connectedwith and opcrates said valve.

7. In e liquid meter, a vesselhaving an orifice therein, s deviceconnected with and conveying liquid to said vessel, :1 fulcrumed leverconnected to said device, and a. valve connected with said lever tocontrol the flow of said liquid.

8. To a. liquid meter, a vessel,'means for balancing said vessel, asecond vessel, means doibalancing said second vessel, a valve operatedby said second vessel through its balancing means for regulating theflow of a liquid to said first vessel, and means whereby the overflowfrom said first vessel is c'onveyed to said secondvessel.

9. In a. liquid meter, a stationary vessel, a vessel with an orifice inthe bottom thereof movable in said stationary vessel, means forbalancing id movable vessel, a valve for controlling the flow of a.liquid into ssi movable vessel, a second movable vessel with an orificein the bottom thereof, a belencing device connecting said valve withsaid second movable vessel, and means for conveyon movable vessel. 10.in a liquid meter, 3, channel for liquid to be measured, a liquidcontainer having on orifice, means for varying the liquid head causing aflow through said orifice with variations in the-flow in said channel,and means for automatically meesuring the li uid discharged from saidorifice.- 11. In a iquid meter, a liquid container having an orifice,means for balancing said container, means tor varying the position ofsaid container and the liquid head inducing flow through said orifice,and means for automatically measuring the liquid discharged froni saidorifice.

In testimony whereof I have hereunto set my name this 27th day ofFebruary, 1907, in the presence of the sub scribing witnesses,

JOHN W; Lem

. L" the overflow from said first to seidm-

